Research Article

Time of Application of Sodium Ascorbate on Bonding to Bleached Dentin

Figure 1

Appearances of dentin surface according to application times of 10% sodium ascorbate (SA) solution after bleaching procedure using scanning electron microscopy (SEM) in the Group A. (A) Immediately after bleaching procedure; (B) application of the 10% SA solution for 30 minutes after bleaching procedure; (C) application of the 10% SA solution for 24 hours after bleaching procedure; (D) application of the 10% SA solution for 72 hours after bleaching procedure.